Book, Dragonborn, by Toby Forward

When Flaxfield the great wizard dies, his apprentice, Sam, is left alone. With only his dragon at his side, Sam sets out on his quest to find a new master. But there are dangerous forces who want Sam's powers for themselves. When Sam is tricked into making a mortal error, the only one who can save him is his dragon. 

• Paperback: ‎ 368 pages, 
• ISBN-10: ‎ 1599909839, 
• ISBN-13: ‎ 978-1599909837, 
• Reading age: ‎ 8 - 12 years, 
• Grade level: ‎ 3 - 6,